Display screen or portion thereof with graphical user interface



The sole FIGURE is a front view of a display screen or portion thereof with graphical user interface showing my new design.

The broken line showing of selected graphical user interface features within the display screen or portion thereof with graphical user interface is for the purpose of illustrating environment and form no part of the claimed design.

The broken line showing of the mobile terminal in the FIGURE illustrates environment and forms no part of the claimed design. 

CLAIM I claim the ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 